FoCal, a high-granularity electromagnetic calorimeter development as a possible upgrade for the ALICE experiment

20 May 2014, 16:30
spectrum (darmstadtium)



Board: M-22
Poster Future Experimental Facilities, Upgrades, and Instrumentation Poster session


Thomas Peitzmann (University of Utrecht (NL))


A forward electromagnetic calorimeter (FoCal) based on SiW technology is being considered as a possible upgrade to the ALICE detector. The main driving force behind this detector is the ability to measure direct photons in a so far unreachable part of phase space. It should thus provide unique information relevant for the study of the small-x structure of nucleons and nuclei and possible effects of gluon saturation, among many other interesting physics topics. To achieve this, the device should in particular feature an extremely high lateral granularity allowing gamma/pi0 discrimination out to very high momenta. The main option considered for the high granularity layers are CMOS pixel sensors. We will discuss the motivation and design principles of the proposed calorimeter and will then focus on the experience gained with a full CMOS-pixel calorimeter prototype. We will also discuss the status of photon identification algorithms to be used with such a detector.
On behalf of collaboration: [Other]

Primary author

Thomas Peitzmann (University of Utrecht (NL))

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